• Title/Summary/Keyword: 자동차 EMC

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The Effect of EMC by Metal Cover and Noise Reduction Method (Metal Cover에 의한 EMC 분석 및 Noise 저감 방법)

  • Yun, Sangwon;Park, Chuleui;Lee, Chanho;Kim, Sehyun;Yang, Manyoung;Kim, Dongsik;Yoo, Jiyoon
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.3
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    • pp.143-147
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    • 2014
  • The ECU which is operating inductive actuator like motor or solenoid should be designed with considering the heat removal performance and the EMC performance. In most cases, these two performances are trade-off. Especially, the metal cover with plastic housing for improving heat removal performance can affect EMC performance by coupling the noise source to harness cable and connector. Therefore, after analyzing the EMC effectiveness of the metal cover, countermeasures for EMC noise reduction should be established. In this paper, by simulating and testing of AHB Gen3 ECU, the influence of the metal cover to EMC performance is analyzed. And based on this result, we propose solutions for EMC noise reduction.

Management Plan on EMC for Functional Safety of the ISO26262 (자동차 기능 안전성(ISO26262)에 관한 EMC 관리계획)

  • Shin, Jaekon;Chung, Yeonchoon;Choi, Jaehoon
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.25 no.10
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    • pp.1020-1027
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    • 2014
  • ISO 26262 is applied to vehicle and electrical/electronic component manufacturers for minimizing car accidents and life damage by the extended use of electronic control equipments and their malfunctions. In this standard, safety requirements are required to be applied from the early stage of development upto manufacture and disposal stages throughout the total lifecycle of the full vehicular system, and electromagnetic compatibility must be also managed as an important consideration factor. Therefore, it is nowadays very necessary to research and develop EFS(EMC for Functional Safety) to be applied in each stage of the design, manufacture, accreditation, use, maintenance stages of cars. In this paper, how EFS can be applied for the application of ISO 26262 is described. By the enforcement of this suggestions into the legal requirement or New Car Assessment Program(NCAP) test items, it is necessary that car manufacturer have to perform some procedures for ensuring car safety by themselves.

The Electro-Magnetic Susceptibility Test Method of a Road Vehicle Considering the Field Uniformity (전계의 균일성을 고려한 자동차의 전자파 내성시험 방법에 관한 연구)

  • Bae, Min-Gwan;Shin, Jae-Kon;Yong, Gee-Joong;Woo, Hyun-Gu
    • Transactions of the Korean Society of Automotive Engineers
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    • v.18 no.4
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    • pp.84-91
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    • 2010
  • Owing to revolutionary developments in automobile technologies, a variety of advanced vehicles - hybrid vehicle, hydrogen fuel-cell vehicle, electric vehicle, etc. - emerges recently. The safety is getting more important for developing automobiles. The electro-magnetic compatibility has to be assured, since those advanced vehicles are equipped with various new electronic systems. Electro-magnetic compatibility tests, in general, consist of an EMI(electro-magnetic interference) test and an EMS (electro-magnetic susceptibility) test. We investigated the susceptibility test method suggested in KMVSS (Korean Motor Vehicle Safety Standard) as the EMS test method. A series of experiments results that the above test method should be partially revised to comply with a Korean governmental standard method. In this paper, the some directions of modifications are presented to enhance the quality of the above EMS test method.

Development of Printed Bow-tie Antenna with 3 ~ 5 GHz Broadband Characteristics for Testing the Electromagnetic Immunity of Automotive Electrical Components in the 5G Frequency Band (5G 주파수 대역의 자동차 전장품 전자기파 내성 평가를 위한 3 ~ 5 GHz 광대역 특성의 인쇄형 bow-tie 안테나 개발)

  • Ko, Ho-jin;Choi, Beom-jin;Park, Ki-hun;Woo, Jong-myung
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.19 no.3
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    • pp.137-147
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    • 2020
  • This paper proposes printed bow-tie antennas with 3 ~ 5 GHz broadband characteristics were proposed for testing the electromagnetic immunity of automotive electrical components in the 5G frequency band. The antenna get -10 dB bandwidth in the 2.75 ~ 6 GHz frequency band and the broadside radiation pattern with S11 characteristic of -16.2 dB at resonant frequency. In testing electromagnetic immunity in the 5G mobile communication frequency band, the VSWR characteristic remained below 2.1, forming a level of 1 W as proposed by international standards. As a result, it is confirmed that the proposed antenna can be applied to antenna testing for electromagnetic immunity verification in the 5G mobile communication frequency band.